Json.net deserialization problem

So im doing a databse for my survival game and recently i started adding attachments but i have a problem with deserializing them from Json. My code looks like this:

 string weaponData;
 public List<Item> database = new List<Item>();
 
 public void ConstructWeaponDatabase(){
           AddItemsToDatabase(JsonConvert.DeserializeObject<List<Item>>(weaponData));
 }
 
 [System.Serializable]
 public class Attachment {
     public string name;
     public List<string> acceptedThings;
     public int attachedItem;
 }
 
 [System.Serializable]
 public class Item {
     //variables
     public List<Attachment> Attachments;
     //other stuff
 }

Weapon data is loaded from a .json file by ReadAllText(). Add items to database goes through every item and initializes unserializable data(icon, prefab,...).

My json file looks like this:

 [{
        [other item]
 }
 ,{
     [other variables]
     
     "attachments":[
         {
             "name": "Barrel",
             "acceptedThings": ["barrel", "silencer", "flare"],
             "default": -1
         },
         {
             "name": "Scope",
             "acceptedThings": ["scope", "nothing", "random stuff"],
              "default": -1
         }
         
     ]
 }]

For some strange reason it initializes all other variables just fine but the lenght of Attachments stays 0. Any ideas?